For a different vibe, there is a Piano Instrumental version available on YouTube.
You can find various versions of the song to practice with or use for performance: John Doe B O B ft Priscilla Karaoke
The song blends B.o.B's rhythmic rap verses with Priscilla’s melodic, "rock-tinged" vocals. If you're singing solo, practice the transition between the rapid delivery of the verses and the sustained, emotional notes of the chorus. For a different vibe, there is a Piano
High-quality versions are available from Pop Music Workshop and Karaoke Galaxy . For a different vibe
Focus on breath support from your diaphragm to handle the rap sections without losing air before the hook. For the chorus, using light vibrato can add a polished, professional feel to the melody.